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<h3 id="&#x5B9E;&#x9A8C;&#x9898;">&#x5B9E;&#x9A8C;&#x9898;</h3>
<ol>
<li><p>&#x539F;&#x7406;&#xFF1A;&#x5728; <code>os/src/entry.asm</code> &#x4E2D;&#xFF0C;<code>boot_page_table</code> &#x7684;&#x610F;&#x4E49;&#x662F;&#x4EC0;&#x4E48;&#xFF1F;&#x5F53;&#x8DF3;&#x8F6C;&#x6267;&#x884C; <code>rust_main</code> &#x65F6;&#xFF0C;&#x4E0D;&#x8003;&#x8651;&#x7F13;&#x5B58;&#xFF0C;&#x786C;&#x4EF6;&#x901A;&#x8FC7;&#x54EA;&#x4E9B;&#x5730;&#x5740;&#x627E;&#x5230;&#x4E86; <code>rust_main</code> &#x7684;&#x7B2C;&#x4E00;&#x6761;&#x6307;&#x4EE4;&#xFF1F;</p>
<div class="click_reveal"><span> Click to show </span><div><blockquote>
<ol>
<li><p><code>boot_page_table</code> &#x662F;&#x4E00;&#x4E2A;&#x7528;&#x4E8C;&#x8FDB;&#x5236;&#x8868;&#x793A;&#x7684;&#x6839;&#x9875;&#x8868;&#xFF0C;&#x5176;&#x4E2D;&#x5305;&#x542B;&#x4E24;&#x4E2A; 1GB &#x5927;&#x9875;&#xFF0C;&#x5206;&#x522B;&#x662F;&#x5C06;&#x865A;&#x62DF;&#x5730;&#x5740; <code>0x8000_0000</code> &#x81F3; <code>0xc000_0000</code> &#x6620;&#x5C04;&#x5230;&#x7269;&#x7406;&#x5730;&#x5740; <code>0x8000_0000</code> &#x81F3; <code>0xc000_0000</code>&#xFF0C;&#x4EE5;&#x53CA;&#x5C06;&#x865A;&#x62DF;&#x5730;&#x5740; <code>0xffff_ffff_8000_0000</code> &#x81F3; <code>0xffff_ffff_c000_0000</code> &#x6620;&#x5C04;&#x5230;&#x7269;&#x7406;&#x5730;&#x5740; <code>0x8000_0000</code> &#x81F3; <code>0xc000_0000</code>&#x3002;</p>
<p>&#x7531;&#x4E8E;&#x6211;&#x4EEC;&#x5728; <code>linker.ld</code> &#x4E2D;&#x6307;&#x5B9A;&#x4E86;&#x8D77;&#x59CB;&#x5730;&#x5740;&#x4E3A; <code>0xffff_ffff_8020_0000</code>&#xFF0C;&#x64CD;&#x4F5C;&#x7CFB;&#x7EDF;&#x6267;&#x884C;&#x6587;&#x4EF6;&#x4F1A;&#x8BA4;&#x4E3A;&#x6240;&#x6709;&#x7684;&#x7B26;&#x53F7;&#x90FD;&#x662F;&#x5728;&#x8FD9;&#x4E2A;&#x9AD8;&#x5730;&#x5740;&#x4E0A;&#x7684;&#x3002;&#x4F46;&#x662F;&#x6211;&#x4EEC;&#x5728;&#x786C;&#x4EF6;&#x4E0A;&#x53EA;&#x80FD;&#x5C06;&#x5185;&#x6838;&#x52A0;&#x8F7D;&#x5230; <code>0x8020_0000</code> &#x5F00;&#x59CB;&#x7684;&#x5185;&#x5B58;&#x7A7A;&#x95F4;&#x4E0A;&#xFF0C;&#x6B64;&#x65F6;&#x7684; <code>pc</code> &#x4E5F;&#x4F1A;&#x8C03;&#x8F6C;&#x5230;&#x8FD9;&#x91CC;&#x3002;</p>
<p>&#x4E3A;&#x4E86;&#x8BA9;&#x7A0B;&#x5E8F;&#x80FD;&#x591F;&#x6B63;&#x786E;&#x8DF3;&#x8F6C;&#x81F3;&#x9AD8;&#x5730;&#x5740;&#x7684; <code>rust_main</code>&#xFF0C;&#x6211;&#x4EEC;&#x9700;&#x8981;&#x5728; <code>entry.asm</code> &#x4E2D;&#x5148;&#x5E94;&#x7528;&#x5185;&#x6838;&#x91CD;&#x6620;&#x5C04;&#xFF0C;&#x5373;&#x5C06;&#x9AD8;&#x5730;&#x5740;&#x6620;&#x5C04;&#x5230;&#x4F4E;&#x5730;&#x5740;&#x3002;&#x4F46;&#x6211;&#x4EEC;&#x4E0D;&#x53EF;&#x80FD;&#x5728;&#x66FF;&#x6362;&#x9875;&#x8868;&#x7684;&#x540C;&#x65F6;&#x4FEE;&#x6539; <code>pc</code>&#xFF0C;&#x6B64;&#x65F6; <code>pc</code> &#x4ECD;&#x7136;&#x5904;&#x4E8E;&#x4F4E;&#x5730;&#x5740;&#x3002;&#x6240;&#x4EE5;&#xFF0C;&#x9875;&#x8868;&#x4E2D;&#x7684;&#x53E6;&#x4E00;&#x9879;&#xFF08;&#x4F4E;&#x5730;&#x5740;&#x7684;&#x6052;&#x7B49;&#x6620;&#x5C04;&#xFF09;&#x5219;&#x4FDD;&#x8BC1;&#x7A0B;&#x5E8F;&#x66FF;&#x6362;&#x9875;&#x8868;&#x540E;&#x7684;&#x77ED;&#x6682;&#x65F6;&#x95F4;&#x5185;&#xFF0C;<code>pc</code> &#x4ECD;&#x7136;&#x53EF;&#x4EE5;&#x987A;&#x7740;&#x4F4E;&#x5730;&#x5740;&#x53BB;&#x6267;&#x884C;&#x5185;&#x5B58;&#x4E2D;&#x7684;&#x6307;&#x4EE4;&#x3002;</p>
<p><em>&#x6CE8;&#xFF1A;&#x5982;&#x679C; <code>boot_page_table</code> &#x4E2D;&#x4E0D;&#x5305;&#x542B;&#x4F4E;&#x5730;&#x5740;&#x6052;&#x7B49;&#x6620;&#x5C04;&#xFF0C;&#x7A0B;&#x5E8F;&#x53EF;&#x80FD;&#x4ECD;&#x7136;&#x53EF;&#x4EE5;&#x6B63;&#x5E38;&#x8FD0;&#x884C;&#x3002;&#x8FD9;&#x53EF;&#x80FD;&#x548C;&#x786C;&#x4EF6;&#x7684;&#x7F13;&#x5B58;&#x8BBE;&#x8BA1;&#x6709;&#x5173;&#x3002;&#x4F46;&#x4FDD;&#x9669;&#x8D77;&#x89C1;&#xFF0C;&#x5E94;&#x5F53;&#x4FDD;&#x7559;&#x8FD9;&#x4E24;&#x4E2A;&#x6620;&#x5C04;&#x3002;</em></p>
</li>
<li><p>&#x6267;&#x884C; <code>jal rust_main</code> &#x65F6;&#xFF0C;&#x786C;&#x4EF6;&#x9700;&#x8981;&#x52A0;&#x8F7D; <code>rust_main</code> &#x5BF9;&#x5E94;&#x7684;&#x5730;&#x5740;&#xFF0C;&#x5927;&#x6982;&#x662F; <code>0xffff_ffff_802x_xxxx</code>&#x3002;</p>
<ul>
<li>&#x9875;&#x8868;&#x5DF2;&#x7ECF;&#x542F;&#x7528;&#xFF0C;&#x786C;&#x4EF6;&#x5148;&#x4ECE; <code>satp</code> &#x9AD8;&#x4F4D;&#x7F6E;&#x8BFB;&#x53D6;&#x5185;&#x5B58;&#x6620;&#x5C04;&#x6A21;&#x5F0F;&#xFF0C;&#x518D;&#x4ECE; <code>satp</code> &#x4F4E;&#x4F4D;&#x7F6E;&#x8BFB;&#x53D6;&#x6839;&#x9875;&#x8868;&#x9875;&#x53F7;&#xFF0C;&#x5373; <code>boot_page_table</code> &#x7684;&#x7269;&#x7406;&#x9875;&#x53F7;</li>
<li>&#x5BF9;&#x4E8E; Sv39 &#x6A21;&#x5F0F;&#xFF0C;&#x9875;&#x53F7;&#x6709;&#x4E09;&#x7EA7;&#x5171; 27 &#x4F4D;&#x3002;&#x5BF9;&#x4E8E; <code>rust_main</code> &#x800C;&#x8A00;&#xFF0C;&#x4E00;&#x7EA7;&#x9875;&#x53F7;&#x662F;&#x5176; [30:38] &#x4F4D;&#xFF0C;&#x5373; 510&#x3002;&#x786C;&#x4EF6;&#x6B64;&#x65F6;&#x5B9A;&#x4F4D;&#x5230;&#x6839;&#x9875;&#x8868;&#x7684;&#x7B2C; 510 &#x9879;</li>
<li>&#x8FD9;&#x4E00;&#x9879;&#x7684;&#x6807;&#x5FD7;&#x4E3A; XWR&#xFF0C;&#x8BF4;&#x660E;&#x5B83;&#x6307;&#x5411;&#x4E00;&#x4E2A;&#x5927;&#x9875;&#x800C;&#x4E0D;&#x662F;&#x6307;&#x5411;&#x4E0B;&#x4E00;&#x7EA7;&#x9875;&#x8868;&#xFF1B;&#x76EE;&#x6807;&#x7684;&#x9875;&#x53F7;&#x4E3A; <code>0x8_0000</code>&#xFF0C;&#x5373;&#x7269;&#x7406;&#x5730;&#x5740; <code>0x8000_0000</code> &#x5F00;&#x59CB;&#x7684;&#x533A;&#x95F4;&#xFF1B;&#x8FD9;&#x4E00;&#x9879;&#x7684; V &#x4F4D;&#x4E3A; 1&#xFF0C;&#x8BF4;&#x660E;&#x76EE;&#x6807;&#x5728;&#x5185;&#x5B58;&#x4E2D;&#x3002;&#x56E0;&#x6B64;&#xFF0C;&#x786C;&#x4EF6;&#x5BFB;&#x5740;&#x5230;&#x9875;&#x57FA;&#x5740; + &#x9875;&#x5185;&#x504F;&#x79FB;&#xFF0C;&#x5373; <code>0x8000_0000 + 0x2x_xxxx</code>&#xFF0C;&#x627E;&#x5230; <code>rust_main</code></li>
</ul>
</li>
</ol>
</blockquote>
</div></div>

<p><br></p>
</li>
<li><p>&#x5206;&#x6790;&#xFF1A;&#x4E3A;&#x4EC0;&#x4E48; <code>Mapping</code> &#x4E2D;&#x7684; <code>page_tables</code> &#x548C; <code>mapped_pairs</code> &#x90FD;&#x4FDD;&#x5B58;&#x4E86;&#x4E00;&#x4E9B; <code>FrameTracker</code>&#xFF1F;&#x4E8C;&#x8005;&#x6709;&#x4F55;&#x4E0D;&#x540C;&#xFF1F;</p>
<div class="click_reveal"><span> Click to show </span><div><blockquote>
<p>&#x9875;&#x8868;&#x4E5F;&#x662F;&#x9700;&#x8981;&#x6211;&#x4EEC;&#x53BB;&#x5206;&#x914D;&#x9875;&#x9762;&#x6765;&#x5B58;&#x50A8;&#x7684;&#x3002;&#x56E0;&#x6B64;&#xFF0C;<code>page_tables</code> &#x5B58;&#x653E;&#x4E86;&#x6240;&#x6709;&#x9875;&#x8868;&#x6240;&#x7528;&#x5230;&#x7684;&#x9875;&#x9762;&#xFF0C;&#x800C; <code>mapped_pairs</code> &#x5219;&#x5B58;&#x653E;&#x4E86;&#x8FDB;&#x7A0B;&#x6240;&#x7528;&#x5230;&#x7684;&#x9875;&#x9762;&#x3002; </p>
</blockquote>
</div></div>

<p><br></p>
</li>
<li><p>&#x5206;&#x6790;&#xFF1A;&#x5047;&#x8BBE;&#x67D0;&#x8FDB;&#x7A0B;&#x9700;&#x8981;&#x865A;&#x62DF;&#x5730;&#x5740; A &#x5230;&#x7269;&#x7406;&#x5730;&#x5740; B &#x7684;&#x6620;&#x5C04;&#xFF0C;&#x8FD9;&#x9700;&#x8981;&#x64CD;&#x4F5C;&#x7CFB;&#x7EDF;&#x6765;&#x5B8C;&#x6210;&#x3002;&#x90A3;&#x4E48;&#x64CD;&#x4F5C;&#x7CFB;&#x7EDF;&#x5728;&#x5EFA;&#x7ACB;&#x6620;&#x5C04;&#x65F6;&#x6709;&#x6CA1;&#x6709;&#x8BBF;&#x95EE; B&#xFF1F;&#x5982;&#x679C;&#x6709;&#xFF0C;&#x5B83;&#x662F;&#x600E;&#x4E48;&#x5728;&#x8FD8;&#x6CA1;&#x6709;&#x6620;&#x5C04;&#x7684;&#x60C5;&#x51B5;&#x4E0B;&#x8BBF;&#x95EE; B &#x7684;&#x5462;&#xFF1F;</p>
<div class="click_reveal"><span> Click to show </span><div><blockquote>
<p>&#x5EFA;&#x7ACB;&#x6620;&#x5C04;&#x4E0D;&#x9700;&#x8981;&#x8BBF;&#x95EE; B&#xFF0C;&#x800C;&#x53EA;&#x9700;&#x8981;&#x64CD;&#x4F5C;&#x9875;&#x8868;&#x5373;&#x53EF;&#x3002;&#x4E0D;&#x8FC7;&#xFF0C;&#x901A;&#x5E38;&#x7A0B;&#x5E8F;&#x90FD;&#x4F1A;&#x9700;&#x8981;&#x64CD;&#x4F5C;&#x7CFB;&#x7EDF;&#x5EFA;&#x7ACB;&#x6620;&#x5C04;&#x7684;&#x540C;&#x65F6;&#x5411;&#x9875;&#x9762;&#x4E2D;&#x52A0;&#x8F7D;&#x4E00;&#x4E9B;&#x6570;&#x636E;&#x3002;&#x6B64;&#x65F6;&#xFF0C;&#x5C3D;&#x7BA1; A&#x2192;B &#x7684;&#x6620;&#x5C04;&#x5C1A;&#x4E0D;&#x5B58;&#x5728;&#xFF0C;&#x56E0;&#x4E3A;&#x6211;&#x4EEC;&#x5C06;&#x6574;&#x4E2A;&#x53EF;&#x7528;&#x7269;&#x7406;&#x5185;&#x5B58;&#x90FD;&#x5EFA;&#x7ACB;&#x4E86;&#x5185;&#x6838;&#x6620;&#x5C04;&#xFF0C;&#x6240;&#x4EE5;&#x64CD;&#x4F5C;&#x7CFB;&#x7EDF;&#x4ECD;&#x7136;&#x53EF;&#x4EE5;&#x901A;&#x8FC7;&#x7EBF;&#x6027;&#x504F;&#x79FB;&#x91CF;&#x6765;&#x8BBF;&#x95EE;&#x5230; B&#x3002;</p>
</blockquote>
</div></div>

<p><br></p>
</li>
<li><p>&#x5B9E;&#x9A8C;&#xFF1A;&#x4E86;&#x89E3;&#x5E76;&#x5B9E;&#x73B0;&#x65F6;&#x949F;&#x9875;&#x9762;&#x7F6E;&#x6362;&#x7B97;&#x6CD5;&#xFF08;&#x6216;&#x4EFB;&#x4F55;&#x4F60;&#x611F;&#x5174;&#x8DA3;&#x7684;&#x7B97;&#x6CD5;&#xFF09;&#xFF0C;&#x53EF;&#x4EE5;&#x81EA;&#x884C;&#x8BBE;&#x8BA1;&#x6837;&#x4F8B;&#x6765;&#x6BD4;&#x8F83;&#x6027;&#x80FD;</p>
<ul>
<li><p>&#x7F6E;&#x6362;&#x7B97;&#x6CD5;&#x53EA;&#x9700;&#x8981;&#x4FEE;&#x6539; <code>os/src/memory/mapping/swapper.rs</code></p>
</li>
<li><p>&#x5728; <code>main.rs</code> &#x4E2D;&#x8C03;&#x7528; <code>create_kernel_thread</code> &#x6765;&#x521B;&#x5EFA;&#x7EBF;&#x7A0B;&#xFF0C;&#x4F60;&#x53EF;&#x4EE5;&#x4EFB;&#x610F;&#x4FEE;&#x6539;&#x5176;&#x4E2D;&#x8FD0;&#x884C;&#x7684;&#x51FD;&#x6570;&#xFF0C;&#x4EE5;&#x8FBE;&#x5230;&#x6D4B;&#x8BD5;&#x6548;&#x679C;</p>
</li>
</ul>
</li>
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